Refactored the following icons to fix display issues in some cases (e.g. Adobe Illustrator): - Eleventy - Gentoo - GreenSock - Laravel - MuseScore - Open Source Initiative - PyTorch - Qgis - RStudio - Skillshare - Xiaomi
* added qgis icon * edited the svg to add title and role * modified svg to be in correct format * optimized svg and updated simple-icons.json * updated source to point to design guide and SVG into single line -- Closes #1694